1
Andrew A Hrametz, Clarence C Gardner, Margaret C Waid, Mark A Proett: Focused formation fluid sampling probe. Halliburton Energy Services, Conley Rose & Tayon, October 16, 2001: US06301959 (171 worldwide citation)

A formation fluid sampling probe uses two hydraulic lines to recover formation fluids from two zones in a borehole. One of the zones is a guard zone and the other is a probe zone. The guard zone and the probe zone are isolated from each other by mechanical means, with the guard zone surrounding the ...


2
Andrew A Hrametz, James M Moore, Mark A Proett: Formation tester with improved sample collection system. Halliburton Energy Services, Eugene R Montalvo, August 10, 1999: US05934374 (88 worldwide citation)

This invention provides a formation evaluation tool for collecting a formation fluid in a chamber at a predetermined pressure and for maintaining the pressure of the collected fluid at a desired level during the retrieval of the chamber to the surface. The formation fluid is pumped into the chamber ...


3
Andrew A Hrametz, William B King: Well fluid flow velocity measuring apparatus including a spinner cartridge assembly. Halliburton Logging Services, William J Beard, August 1, 1989: US04852401 (5 worldwide citation)

A fluid flow velocity measuring device is shown. In the preferred and illustrated embodiment, an elongate body receives a removable spinner cartridge assembly. The assembly is formed of an elongate sleeve surrounding a rotating shaft supported by bearing assemblies at opposite ends of the shaft. The ...


4
James E Galford, Andrew A Hrametz, Jerome A Truax: Nuclear logging tool. Halliburton Energy Services, Mark E Scott, Conley Rose P C, August 10, 2010: US07772545 (1 worldwide citation)

Nuclear logging tool. At least some of the illustrative embodiments are methods comprising placing a logging tool within a borehole proximate to an earth formation, releasing energetic neutrons from the logging tool, and receiving (at a detector within the logging tool) gamma returns indicative of i ...


5
James E Galford, Andrew A Hrametz, Jerome A Truax: Nuclear logging tool. Halliburton Energy Services, Conley Rose PC, David A Rose, January 28, 2010: US20100019138-A1

Nuclear logging tool. At least some of the illustrative embodiments are methods comprising placing a logging tool within a borehole proximate to an earth formation, releasing energetic neutrons from the logging tool, and receiving (at a detector within the logging tool) gamma returns indicative of i ...